Critical values for quick reference during this activity. Confidence level Critical value 0.90 z∗=1.645 0.95 z∗=1.960 0.99 z∗=2.576     In a poll of 1000 randomly selected voters in a local election, 507 voters were in favor of fire department bond measures.   What is the sample proportion p^? ___________     What is the margin of error m for the 99% ___________       confidence level? ___________

MATLAB: An Introduction with Applications
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Critical values for quick reference during this activity.

Confidence level

Critical value

0.90

z∗=1.645

0.95

z∗=1.960

0.99

z∗=2.576

 

 

In a poll of 1000 randomly selected voters in a local election, 507 voters were in favor of fire department bond measures.

 

What is the sample proportion p^? ___________

 

 

What is the margin of error m for the 99% ___________       confidence level? ___________

 

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